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U.S. Department of Energy
Office of Scientific and Technical Information

B332 & B151 ACL Events

Technical Report ·
DOI:https://doi.org/10.2172/1785437· OSTI ID:1785437
 [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

In September 2019, two Unexpected Radiological Event (HP-FO-601) reports were submitted to document the exceedance of a worker's default Administrative Control Level (ACL) of 100 mrem/y. One involved work in B332; the second in B151. B332 event: The worker was new to B332 and had completed qualification as an Associate Fissile Material Handler (FMH) in April of 2019. The worker received 61 mrem in June and an additional 100 mrem in July. The worker was on a monthly TLD exchange cycle. B151 event: A PLS radiochemist received ~20 mrem for the 1st quarter of the year and ~120 mrem for the 2nd quarter of the year. The worker was on a quarterly TLD exchange cycle.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
AC52-07NA27344
OSTI ID:
1785437
Report Number(s):
LLNL-TR--823038; FRM--3075-Rev.02; 1035784
Country of Publication:
United States
Language:
English